20 June 2012

FORWARD FUSELAGE

The seat channel is clecoed with #40 clecos and spaced to ease the drilling process. The clecos for #40 is in silver color and seat channel is clecoed to the cabin floor.

With a #30 drill bit, the holes are then expanded through seat channel to the cabin floor. We used angle drill with #30 drill bit to enlarge the holes.

Drilled holes are then clecoed with #30 clecos (brown colour , center of the picture). The remaining holes are then enlarged #30 clecoes hold the between the seat channel (75F11-1) and cabin floor (75F10-3).

We have left 3 holes on the end of both sides of the seat channel (75F11-1) as we did not installed the lower longeron (75F13-1) yet at this time. These holes is secured by using clecoes so that it is not accidentally drilled. And also to secure so that we did not drilled through cabin floor and cabin side assembly for now.

Then, we have clecoed the pilot holes with #40 clecoes spaced between gear channel (75F11-3) and the cabin floor. These are shown in the center of the image. Both end part of the gear channel are clecoed with 3 #40 clecoes so that we did not accidentally enlarged it with #20 as we did not install lower longeron yet and also we didn’t want to drill through the cabin floor and the side assembly yet.

With a #30 drill bit, the holes are then expanded through the gear channel  (75F11-3) into cabin floor. Then, with#20 drill bit, previous expanded holes are then enlarged and then clecoed. Then, enlarged  holes are then clecoed with #20 clecoes. Then the remaining holes are then enlarged to then #30, then #20 as shown in the picture.

The left arm rest side (75F12-1) is clecoed to the cabin floor with #40 clecoes spaced. Then with #30 drill bit, the holes are then expanded through the left arm rest side (75F12-1), cabin floor (75F10-3) and floor stiffener (75F10-4). We also have enlarged the pilot hole through left arm rest side (75F12-1), Gear Channel (75F11-3) and floor stiftener (75F10-4) With #30 drill bit as shown in the picture.

Then we clecoed Right Arm Rest Side (75F11-6) to the cabin floor with #40 clecoed spaced

With a #30 drill bit, the pilot holes are then expanded through the Right Arm Right Side (75F11-6), cabin floor (75F10-3) and foor stiffener (75F10-4). The expanded holes are then clecoed with #30 clecoes, the remaining holes are then enlarged to #30 size through the Right Arm Right Side (75F11-6), cabin floor (75F10-3) and floor stiffener (75F10-4). We also enlarged the pilot hole through Right Arm Right Side (75F11-6), Gear Channel (75F11-3) and floor stiffener (75F10-4) with #30. Finished enlarged holes are shown and clecoed with #30 clecoes.

Finished enlarging holes on the seat channel (75F11-1) with #30, Gear Channel (75F11-3) with #20, Left Arm Rest Side (75F12-1) with #30 and Right Arm Rest Side (75F11-6) with #30 size drill bit.

The pilot side seat support (75F11-2) is then clecoed with #40 clecoes. Then with #30 drill bit, the pilot holes are then expanded in the pilot side seat support through the cabin floor and clecoed with #30. The remaining pilot holes is then enlarged to #30 size as shown in the picture.

Then, passenger side seat support (75F11-2) is then clecoed with #40 clecoes spaced as shown in the picture.

With a #30 drill bit, the holes are then expanded through the passenger side seat support through the cabin floor and seat channel. Enlarged holes are then clecoed, and remaining pilot holes are then enlarged to #30 holes. As shown in the picture.